Hello, i am back; the source of eternal comments. But well beeing the overthinker i am, i have realized that for the project i was considering the 128x128 size limit will make it difficult to create bigger, higher resolution structures, which was what i intended to use it for. Is there any chance that there will in the future be a significant increase in potential size limits? Maybe just as a tool for exporting spritesheets.
Yes you can export the whole scene as a spritesheet.
128 limit is due to performance. I could probably work around this to support even bigger sizes but it's not the focus of this software - it stops to look like "pixelart" at that level of details and you should consider more effective technique if you need voxel objects of that size - probably low poly 3D would be a better fit. SpriteStack is for making game objects like units, chracters, buildings that look like games from 90's